TABLE 10 Catches (tonnes) and CPUE data for the Ghanaian trawl fleet which
operated on the West African shelf in the period 1964–1969 (for the
species groups defined in the text, after Zei and Ansa-Emmin, 1970).

TABLE 13: Percentage occurrence of fish families in the catches in
relation to depth on fishing grounds of the Shelf of Mauritania
and Senegal in three fishing periods-from 28 March till
10 July 1967 by the vessel RAMADA (after Klimaj, 1970)

TABLE 16 Average sparid yields per hour (in cwt and kg) for large Soviet
factory trawlers in the main sparid season (after Domanevsky,
1970).

Period

cwt

kg

1961–1963

5.5

275

1963–1964

4.2

210

1964–1965

1.4

70

1965–1966

1.7

85

1966–1967

3.1

155

TABLE 17 Japanese CPUE and effort data for several GRT classes of
sterntrawlers for CECAF Statistical Division 34.1.3. CPUE in
tonnes/100 hours fishing.

Vessel GRT

1964

1965

1966

1967

1968

1969

551–1000

C/E sparids

7.1

9.7

13.3

6.4

2.8

5.9

C/E Total

85.9

105.4

84.9

74.1

59.8

47.6

E Total hours

269

3157

3529

27116

34902

30377

% sparids

8.3

9.2

15.7

8.6

4.7

12.4

1001–1500

C/E sparids

16.6

12.5

14.3

10.0

5.0

7.3

C/E Total

96.2

84.6

69.8

64.2

57.3

49.5

E Total hours

178.8

51941

44469

68911

76433

76827

% sparids

17.3

14.8

20.5

15.6

8.7

14.7

1501–2000

C/E sparids

-

0.2

8.2

9.4

7.4

7.8

C/E Total

-

58.3

549.8

56.6

59.3

54.1

E Total hours

-

2457

5747

21113

24775

26043

% sparids

-

0.3

16.5

16.6

12.5

14.4

2001–2500

C/E sparids

23.6

14.8

9.9

12.5

11.4

10.7

C/E Total

91.7

85.1

61.9

69.9

72.0

58.7

E Total hours

2704

3680

7939

14919

17408

17059

% sparids

25.7

17.4

16.0

17.9

15.8

18.2

2501–3000

C/E sparids

26.1

11.7

16.9

18.2

11.1

14.9

C/E Total

96.1

89.6

87.6

84.1

72.9

67.7

E Total hours

20892

29966

29311

29386

35198

21922

% sparids

27.2

13.1

19.3

21.6

15.2

22.0

TABLE 18 Japanese CPUE and effort data for several GRT classes of
sidetrawlers in CECAF Statistical Division 34.1.3. CPUE in
tonnes/100 hours fishing.

Vessel GRT

1964

1965

1966

1967

1968

1969

1–300

C/E sparids

0.1

C/E Total

20.4

E Total hours

% sparids

0.5

301–550

C/E sparids

0

C/E Total

17.0

E Total hours

% sparids

-

1001–1500

C/E sparids

2.6

1.4

-

11.7

-

2.7

C/E Total

73.2

68.1

-

37.5

22.6

75.0

E Total hours

% sparids

3.6

2.1

-

31.2

-

3.6

TABLE 19 Catches (in tonnes) of sparids in Mauritanian waters (Statistical Division 34.1.3) for the period
1981–1983. Source ad hoc Working Group on demersal resources, Mauritania, Senegal and The Gambia